PMHNP's, Advice!

So I was currently accepted to a PMHNP program and I would like to specialize in neuro-psychiatric mental health issues across the lifespan. I was wondering if there were any current NP's that have worked in neurology or any other setting that may be involved with neuropsychiatric and behavioral disorders such as Alzheimer's, Parkinson's and/or even Autism. What I am really trying to find out is whether this the right pathway for me if I wanted to deal those types of patients?